What is the consequence if an ARM exception handler fails to restore the processor state after handling a hardware event?

medium📝 Analysis Q5 of 15

ARM Architecture - Exception and Interrupt Model

AThe exception handler will be called repeatedly without end

BThe processor will automatically reset to a safe state

CThe hardware event will be ignored permanently

DThe program may resume incorrectly, causing unpredictable behavior

Step-by-Step Solution

Solution:

Step 1: Importance of restoring state
Restoring the processor state ensures the program continues correctly after an exception.
Step 2: Effect of not restoring state
If state is not restored, registers and flags may be corrupted, leading to erratic program behavior.
Final Answer:
The program may resume incorrectly, causing unpredictable behavior -> Option D
Quick Check:
State restoration prevents erratic execution [OK]

Quick Trick: Restore state to avoid unpredictable execution [OK]

Common Mistakes:

Master "Exception and Interrupt Model" in ARM Architecture

9 interactive learning modes - each teaches the same concept differently

Want More Practice?

15+ quiz questions · All difficulty levels · Free

More ARM Architecture Quizzes